Monitor arm



FIG. 1 is a top front right perspective view of a monitor arm, showing our new design;

FIG. 2 is a top rear left perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The dot-dash broken lines immediately adjacent to the claimed regions represent the bounds of the claimed design and form no part of the claimed design, while all other evenly spaced broken lines are directed to environment and form no part of the claimed design. In addition, the unshaded surface that directly adjoins the claimed solid line edge forms part of the claimed design. 

CLAIM We claim the ornamental design for a monitor arm, as shown and described. 